How to appeal your property taxes: steps and deadlines

What you can appeal

Property tax has two parts: a value set by an assessor, and a rate set by local governments. An appeal can challenge the value, and sometimes the exemption or classification applied to your property. You cannot appeal a voted rate through the assessment process.

Common grounds, as stated in the state pages Payotte read:

• The assessed value is higher than the market value. Honolulu, for example, lists the usual ground as a value more than 10% above market value, and requires evidence such as comparable sales.
• The record is wrong: wrong square footage, wrong number of rooms, a property class that does not fit.
• Your value is higher than that of comparable properties.
• An exemption you qualify for was left off. See the homestead exemption guide.

The steps

1. Read the notice as soon as it arrives. It shows the value, the deadline and the office to file with. Mail dates matter: in Florida the clock runs from the TRIM notice mailed each August.
2. Check the record. Ask the assessor’s office for your property record card and compare it with the house.
3. Gather evidence. Recent sales of similar homes nearby, an independent appraisal, repair estimates for defects, photos. The question is the value of the property, not the size of the bill.
4. Try the informal route first when it exists. Florida and Texas both allow an informal conference with the appraiser or appraisal district before the formal hearing.
5. File the formal appeal on time. Use the official form or a written notice, and keep proof of filing.
6. Attend the hearing. Present your comparisons. Boards usually decide on the evidence in front of them.
7. Appeal further if you disagree. Several states let you go further, for example to circuit court in Alabama (30 days after the board’s notice) or to the Tax Court in New Jersey (45 days after the county board’s judgment), each with its own second deadline.
8. Pay the bill meanwhile. An appeal does not always suspend payment. Ask your county whether to pay the undisputed part.

Deadlines are local: examples

These come from Payotte’s state tables. Each is the rule as read on October 14, 2026, and each state page has the official source.

Dates for your county can differ from the state pattern. New York, for instance, lists different Grievance Days in Suffolk and Westchester towns and in assessing villages. Always use the date written on your own notice and on your county’s page.

Costs and risks

• Filing fees. Some places charge a fee; Los Angeles County lists $46, with a hardship waiver available (Payotte table).
• Representatives. You may appear yourself. Some owners hire a representative or attorney; this guide does not name any. Check that the person is licensed where required.
• Rules differ. Ask the board or assessor what it can change on review before you file.

After you buy

In some states the value resets after a change of ownership (Florida and California do, per Payotte’s tables), so a new owner may see a jump, so the first notice after closing is the one to check. The deadline starts with the notice, not with the closing date. Keep it with your closing papers, along with your closing costs and escrow statements.

Where to look next

The deadline for all 50 states is at /usa/by-state/property-tax-appeal-deadlines. Each state page, such as Texas, Florida or New York, links the official body. To estimate what a lower value could save, use the mortgage calculator for the monthly effect and the property tax by county page for local rates.